I am making a find active x control. for connecting to the database I want to make 3 Properties

1.ConnectionString
2.Table
3.DisplayField

but due to I am unaware abt below mentioned thing I am not able to carry on.. pls help out.

1.How to get ellipses while defining a ConnectionString property and then UDL Box? How to retrive the connection string from the UDL?
2.How to get the list of Tables from a particular Database in a List Box?

Any more suggestions will be appreciated